Milk bottle cap



F. B. COLE.

MILK BOTTLE CAP Sept. 6, 1938.

Eiled March 5, L937 ATTORNEY.

Patented Sept. 6, 1938 UNITED STATES PATENT OFFICE 3 Claims.

This invention pertains to closure caps and more especially to such asare designed for the closing of milk bottles. Among the objects of thisinvention are the provision of a cap which can be manufactured and soldfor a less price than the most popular caps now on the market; toprovide a. cap of the character indicated which will aiford a greaterdegree of sanitation than the previously manufactured caps; to provide acap which will furnish a perfect seal for a standard milk bottle; toprovide a cap which will reduce to a minimum the space on the top of thecap wherein water and dirt can collect; and such further objects,advantages, and capabilities as will hereafter appear and as areinherent in the construction disclosed herein.

In the drawing annexed hereto and forming a part hereof,

Fig. 1 represents a plan view of a cap embodyso ing the presentinvention;

Fig. 2 represents a fragmentary section substantially along the planeindicated by the line 2-2, Fig. 1;

Fig. 3 represents a fragmentary sectional view of a part of a cap towhich the printed label has not yet been attached. Reference will now bemade in greater detail to the annexed drawing for a more completedescription of this invention. In the drawing, a 30 bottle isrepresented by the letter B, while the cap is represented, in generahbythe letter C. Inside of the pouring lip, a standard milk bottle isprovided with a ledge i for the reception of a closure'cap of anysuitable type. One of the popular capsof the present day is constructedsomewhat along the lines indicated in Figs. 1, 2, and 3 of Patent No.1,615,157. However, a. cap with a deep top opening, such as shown inthis patent, furnishes too much room for the collection of water anddirt on the'top thereof. The cap which I have produced comprises acircular grooved portion 2 adapted to fit closely the pouring rim of themilk bottle. The outer periphery of this cap is provided with a rib orbead which furnishes a reinforcement for the cap, thus rendering it morediflicult for the rim ofthe cap to expand when moist and being handled.

The inner portion of the grooved rim is extended inwardly in the form ofa flat ring 4 which rests upon the ledge I of the milk bottle to closethe mouth thereof. The central portion of the cap is dome shaped, asindicated at 5, which permits easier application of the cap to a bottle,the upright wall 6 of the cap being slightly larger in diameter than thecorresponding wall of the bottle so that it is necessary for this tocontract somewhat when the cap is being placed upon the bottle. Thisfurnishes an outward pressure upon the mouth of the bottle to hold thecap in place after it has been inserted.

As shown in Fig. 3, the cap is formed with a tapered rib l at the top ofthe grooved portion,

and this furnishes an opening for the reception of the label disc 8. Itis'usual in this art to make up the body of the caps without the discs 8and store them for use later when an order is received for a supply ofcaps. When the order is received, the required printing is placed uponthe discs 8, and these are then inserted into the opening within theflange i and the edge of this flange is forced inwardly, as indicated at9. This furnishes means for retaining the label in place. The rib 1 alsofurnishes a fulcrum about which the channeled rim of the cap may operatewhen a pull is exerted on the rib or bead 3 tending to remove the capfrom the bottle. The effect of such a pull is to tend to draw the part 6outwardly into tighter engagement with the mouth of the bottle.

It will of course be understood that the specific description ofstructure set forth above may be departed from without departing fromthe spirit of this invention as set forth herein and in theappendedclaims.

Having now described my invention, I claim:

1. A bottle cap comprising a central section to rest upon the bottleledge and close the mouth of the bottle, a channeled rim integral withsaid central section to surround the pouring lip of the bottle, part ofthe substance of said rim rising from the crest thereof and beingadapted to be bent over to secure a disc in place thereon, and a discresting upon the top of said rim and extending only to the crestthereof, said disc being secured in place on the rim by bending oversaid part of the substance.

2. A bottle cap comprising a central section to rest upon the bottleledge and close the mouth of the bottle, a channeled rim, continuouswith said central section, to surround the pouring lip of the bottle, adisc resting upon the top of said rim and extending to the crestthereof, and a flange extending upwardly from said rim and turnedinwardly over the edge of said disc to hold same attached to said rim. v

3. A bottle cap comprising a central section to rest upon the bottleledge and close the mouth of the bottle, a rim continuous with saidcentral section rising to the top of the bottle mouth and extendingoutwardly and downwardly around the edge of the bottle, a flangeextending upwardly from the crest of the bottle edge-enclosing portion,said flange being concentric with the central section and being upwardlytapered, and a disc fitting closely within said flange and having the,

edge of the flange turned over to hold the disc in place and furnish asubstantially flat top for the FRED B. COLE.

